Brushless doubly fed induction machine as a variable frequency transformer

A. S. Abdel-Khalik, A. Elserougi, S. Ahmed, A. Massoud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Variable frequency transformer (VFT) has been recently used as an alternative to HVDC to control power flow between asynchronous networks. VFT consumes less reactive power than a back-to-back HVDC system, provides faster initial transient recovery, and has better natural damping capability. VFT is simply a doubly-fed induction machine (DFIM) where the machine torque controls the power flow from stator to rotor and vice versa. The main disadvantage of this VFT is the slip rings and brushes required for the rotor circuit, especially in bulk power transmission. The brushless doubly-fed machine (BDFM) with nested cage rotor machine is proved to be a comparable alternative to conventional DFIM in many applications with the advantage that all windings being in the stator frame with fixed output terminals. In this paper, the BDFM is used as a variable frequency transformer (BVFT). A prototype machine is designed and simulated to verify the system validity.

Original languageEnglish
Title of host publication6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012
PagesP307
Edition592 CP
DOIs
Publication statusPublished - 13 Aug 2012
Event6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012 - Bristol, United Kingdom
Duration: 27 Mar 201229 Mar 2012

Publication series

NameIET Conference Publications
Number592 CP
Volume2012

Other

Other6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012
CountryUnited Kingdom
CityBristol
Period27/3/1229/3/12

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Keywords

  • AC machines
  • Brushless doubly-fed machines
  • Induction machine
  • Variable frequency transformer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Abdel-Khalik, A. S., Elserougi, A., Ahmed, S., & Massoud, A. (2012). Brushless doubly fed induction machine as a variable frequency transformer. In 6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012 (592 CP ed., pp. P307). (IET Conference Publications; Vol. 2012, No. 592 CP). https://doi.org/10.1049/cp.2012.0179